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The objective of the present study was to evaluate random amplified polymorphic DNA (RAPD) as a source of markers for use in investigations in potato genetics. Segregation of 18 loci in diploidSolanum goniocalyx xS. phureja and 12 loci in tetraploidS. tuberosum ssp.tuberosum ×S. tuberosum ssp.andigena families fitted Mendelian and tetrasomic ratios, respectively. Eight loci in the diploid progeny were arranged in three linkage groups. Segregations of these markers fitting expected ratios indicate that they can be effectively used in potato genetics, breeding and evolution. 相似文献
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Georgescu M Lobell DB 《Science (New York, N.Y.)》2010,330(6000):33; author reply 33-33; author reply 34
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Bekris Fotios Georgescu Luciana Bariotakis Michael Kotzabasis Kiriakos Panopoulos Nickolas Pirintsos Stergios 《Journal of Soils and Sediments》2019,19(1):381-392
Journal of Soils and Sediments - Despite the important role of soil ammonia-oxidizing microorganisms (AOM) in the biogeochemical cycle of nitrogen, a unified view of the factors driving their... 相似文献
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Georgescu LP Georgescu ME Leonte M Florea T 《Journal of agricultural and food chemistry》1999,47(4):1427-1430
We have quantified the radical production of Maillard systems with beta-alanine and different sugars by a method that uses the free radical scavenger capacity of galvinoxyl (2,6-di-tert-butyl-alpha-(3, 5-di-tert-butyl-4-oxo-2,5-cyclohexadiene-1-ylidene)-p-tolyloxy) and a GC-MS separation and quantification. We have compared the results with the spectrophotometrical conclusions and highlight the importance of the radical production in the Maillard systems. The method is precise (CV < 5%), accurate (>97%), sensitive (limit of detection 10 ng/mL galvinoxyl), and may be used for the detection and quantification of radical activity in the chemical and biological systems. 相似文献
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Cadot P Hensel P Bensignor E Hadjaje C Marignac G Beco L Fontaine J Jamet JF Georgescu G Campbell K Cannon A Osborn SC Messinger L Gogny-Goubert M Dubreuil P Moussy A Hermine O 《Veterinary dermatology》2011,22(6):554-564
This study investigated the efficacy and safety of masitinib, a selective tyrosine kinase inhibitor capable of downregulating mast cell functions, for treatment of canine atopic dermatitis (CAD). Dogs with confirmed CAD received masitinib at 12.5 mg/kg/day (n = 202) or control (n = 104) for 12 weeks. A reduction in CAD Extent and Severity Index (CADESI-02) score of ≥ 50% at week 12 was observed in 61% of masitinib-treated dogs versus 35% of control dogs (P < 0.001), according to the modified intent-to-treat population. For dogs resistant to ciclosporin and/or corticosteroids (60% of the study population), CADESI-02 response rates were 60 versus 31%, respectively (P = 0.004). The mean reduction in pruritus score of severely pruritic dogs was 46 versus 29%, respectively (P = 0.045). Furthermore, 65% of owners with severely pruritic dogs assessed masitinib efficacy as good/excellent versus 35% control (P = 0.05). Overall, 63% of investigators assessed masitinib efficacy as good/excellent versus 35% control (P < 0.001). Premature discontinuations from the modified intent-to-treat population (28.2% masitinib versus 26.0% control) were mainly due to adverse events (13.4 versus 4.8%, respectively) or lack of efficacy (12.4 versus 18.3%, respectively). In total, 13.2% dogs presented with severe adverse events (16.0% masitinib versus 7.7% control). Masitinib showed a risk of reversible protein loss, although regular surveillance of blood albumin and proteinuria allowed for discontinuation of treatment while the dog was still clinically asymptomatic. Masitinib proved to be an effective and mostly well-tolerated treatment of CAD, including severe and refractory cases, with medically manageable adverse effects. 相似文献
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Landscape Ecology - Studies have shown that land use and land cover change (LUCC) has myriad impacts on local and regional climate. Synthesizing the recent findings in this field helps advance... 相似文献
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Summary The O-type lines (N-plasm) of sugar beet (Beta vulgaris L.) proved to have a consistently lower peroxidase activity (49.2–62.7%) than their male sterile (MS) equivalents (S-plasm).Similar differences in peroxidase activity (45.4–56.3%) were found when O-type lines were compared with unrelated MS lines. They were also observed in different parts of the plant (cotyledons, hypocotyl + radicle, true leaves) and were reproducible.The fertile lines could be grouped by their level of peroxidase activity in categories of either S-plasm or N-plasm.The peroxidase activity test could be used for selection of N-plasm lines from fertile sugar beet populations and for selection of MS and O-type lines of higher stability. 相似文献
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Surks HK Mochizuki N Kasai Y Georgescu SP Tang KM Ito M Lincoln TM Mendelsohn ME 《Science (New York, N.Y.)》1999,286(5444):1583-1587
Contraction and relaxation of smooth muscle are regulated by myosin light-chain kinase and myosin phosphatase through phosphorylation and dephosphorylation of myosin light chains. Cyclic guanosine monophosphate (cGMP)-dependent protein kinase Ialpha (cGKIalpha) mediates physiologic relaxation of vascular smooth muscle in response to nitric oxide and cGMP. It is shown here that cGKIalpha is targeted to the smooth muscle cell contractile apparatus by a leucine zipper interaction with the myosin-binding subunit (MBS) of myosin phosphatase. Uncoupling of the cGKIalpha-MBS interaction prevents cGMP-dependent dephosphorylation of myosin light chain, demonstrating that this interaction is essential to the regulation of vascular smooth muscle cell tone. 相似文献
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